diff --git a/ruby/lib/jam_ruby.rb b/ruby/lib/jam_ruby.rb
index 572b18c16..927d1e40f 100755
--- a/ruby/lib/jam_ruby.rb
+++ b/ruby/lib/jam_ruby.rb
@@ -132,6 +132,7 @@ require "jam_ruby/models/country"
 require "jam_ruby/models/region"
 require "jam_ruby/models/city"
 require "jam_ruby/models/email_batch"
+require "jam_ruby/app/mailers/batch_mailer"
 
 include Jampb